<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>登录账号 | 炫酷风格</title>
    <style>
        /* 基础样式 */
        body {
            margin: 0;
            font-family: 'Segoe UI', 'Arial', sans-serif;
            background: linear-gradient(135deg, #8e2de2, #4a00e0);
            height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            color: white;
        }

        /* 登录卡片容器 */
        .login-card {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            border-radius: 16px;
            padding: 40px;
            width: 100%;
            max-width: 400px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
            animation: fadeIn 0.6s ease-out;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        /* 标题样式 */
        .login-card h1 {
            text-align: center;
            font-size: 2.2rem;
            margin-bottom: 25px;
            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
        }

        /* 输入框样式 */
        .input-group {
            margin-bottom: 20px;
        }

        .input-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            opacity: 0.9;
        }

        .input-group input {
            width: 100%;
            padding: 14px;
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.15);
            color: white;
            font-size: 1rem;
            transition: all 0.3s ease;
        }

        .input-group input::placeholder {
            color: rgba(255, 255, 255, 0.7);
        }

        .input-group input:focus {
            border-color: rgba(255, 255, 255, 0.6);
            box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.2);
            outline: none;
            background: rgba(255, 255, 255, 0.2);
        }

        /* 登录按钮样式 */
        .login-btn {
            width: 100%;
            padding: 14px;
            background: rgba(255, 255, 255, 0.2);
            color: white;
            border: 2px solid white;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            margin-top: 10px;
        }

        .login-btn:hover {
            background: white;
            color: #8e2de2;
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
        }

        /* 底部链接样式 */
        .footer {
            text-align: center;
            margin-top: 20px;
            font-size: 0.9rem;
            opacity: 0.9;
        }

        .footer a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            transition: opacity 0.3s;
        }

        .footer a:hover {
            text-decoration: underline;
            opacity: 0.7;
        }

        /* 动画效果 */
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }

        /* 响应式调整 */
        @media (max-width: 480px) {
            .login-card {
                padding: 30px 20px;
                margin: 10px;
            }
        }
    </style>
</head>
<body>
    <div class="login-card">
        <h1>🔐 登录账号</h1>
        <form>
            <div class="input-group">
                <label for="username">用户名/邮箱</label>
                <input type="text" id="username" placeholder="请输入用户名或邮箱" required>
            </div>
            <div class="input-group">
                <label for="password">密码</label>
                <input type="password" id="password" placeholder="请输入密码" required>
            </div>
            <button type="submit" class="login-btn">登录</button>
        </form>
        <div class="footer">
            <p>还没有账号？<a href="Register.html">立即注册</a></p>
        </div>
    </div>
</body>
</html>